Podcasting referes to pushing an audio file via an RSS feed to listener who subscribes to that feed from a podcatching program such as iPodder, Doppler, or Jager.

The Podcast can be anything from a pre-recorded song to a polished audio show of your making.

Woman, don't bother me, i'm podcasting...Get me a beer.

A factory that makes apple pies for whales.

Jason the Whale lined up on the internet for Podcasting

It's snob for "streaming audio."

this definition via maddox